Viruses stories

Need to cram for a big test? Trying to learn a new language? Just had a great vacation? Scientists have developed a procedure that may be able to help you remember things, as long as you're willing to inject a genetically engineered virus directly into your brain.
The tobacco mosaic virus makes its living by munching on tobacco plants and other vegetables. Researchers have somehow figured out that by slathering the virus onto battery electrodes, it can increase battery capacity by a factor of ten.